LET'S SPOT SPIDERS!
Download the SpiderSpotter App for Android or IOS and help with your observations!
MEASURE SPIDER WEBS
Do spiders in cities build their webs differently from spiders in natural habitats? Use the SpiderSpotter Card to help research!
Download it here
Bram Vanthournout
Wednesday, 04 September 2019 20:15
Cross orbweaver
Latin name: Araneus diadematus
German name: Gartenkreuzspinne
Web: Large orb web
Habitat: Web is constructed in shrubs, tall grasses, lower part of trees. Often found in the garden and sometimes on windows, fences, etc.
How to recognize:
- typical light cross figure on the (often disappears towards the end of life)
- different colors: from light brown / yellowish to dark (red) brown
- large spider that can often be found in the middle of the web during the day, however, some spiders seem to prefer night time to be in the web.
Looks similar to:
- The cross on the abdomen is a very accurate and typical feature.
Size:
♀: 10-18mm
♂: 4-8mm
When?
♀: June till October
♂: June till September
Know more?
One of our most successful spiders because it can live in variety of habitats and catches prey in a particularly efficient way (can easily overpower wasps).
After hatching, young spiders stay together for a while. This is the time when you can spot the typical ball of spiders. When disturbed, the sphere seems to explode and the young spiders flee in all directions.
Published in
Orb Weavers
Tagged under
Download
Get the free Citizen Science App on Google Play for Android or in the Apple App Store.
Register
After the start of the app you can register your own user account with just your eMail adress.
Start observing
Start observing! You are automatically logged-in after registering to add your first observation.
Download the App on your smartphone now or open the map in your browser:
Download the SpiderSpotter Card!
Do you want to help measuring spiders for science? Download the SpiderSpotter Card for self printing at home and hold it in the pictures you take in the SpiderSpotter App. With the measurement reference, we can determine the size of your spider or web observation better. You can also order it at spiderspotter@UGent.be, provide your address and the number of cards you need and we will send them to you!
When holding the SpiderSpotter Card near the spider or a spider's web, please make sure that a ruler and one of the brigthness gradient strips is visible in the picture. You can read more about how to take the pics in our info section!
Download PDF
Help to measure the Spiders!
With the new SpiderSpotter Data Analysis Tool, you can actively participate in generating scientific data! The online interface fetches spider observations live from the Citizen Science App and offers a range of tools to measure the size and the average colour of the spiders. Simply access the Data Analysis Tool and log in with your App account!
You can even select an option to just work with your observations from the App and export your measured data if you want to do your own analysis.
New Spots from the Citizen Science App
von User: Adam97
Datum: 15.05.2025 09:41:47
Datum: 15.05.2025 09:41:47
von User: Kipsate
Datum: 12.05.2025 12:56:13
Datum: 12.05.2025 12:56:13
von User: Minkiway
Datum: 11.05.2025 13:04:09
Datum: 11.05.2025 13:04:09
von User: Dmitry Sergeev
Datum: 10.05.2025 13:20:15
Datum: 10.05.2025 13:20:15
